Z.E.R.O: Zombie Elimination and Rescue Operatives by Jessica Ungeheuer

Jeffrey Knight is a down on his luck self proclaimed loser. He can't keep a job, forced into hours of work in the hell that is retail. His only stable thing in his life was his relationship with his longtime girlfriend…that is until he catches her cheating on him. Now with nothing left, he begrudgingly agrees to join his best friend on a night of fake zombie hunting paintball. The only solace he has in his pitiful life. That is, until he learns zombies are real… Jennifer Mayer has spent her whole life hunting monsters. Working tirelessly for a secret organization of mercenaries to protect normal citizens from learning the truth. However, there are a growing number of undead, and her organization leaders refuse to believe her that something catastrophic is coming. She is in need of new recruits to prevent a coming “Day of the Dead” event. After saving Jeff from near death Jennifer takes him on as a pupil. Jennifer must train Jeff in everything she knows while avoiding the growing feelings and memories he reignites in her -- feelings she thought she buried long ago. Jeff has never finished anything in his life, allowing his fears to stop him. If he chokes up now, there might not be a normal world to go back to.